25007320730 has 32 divisors (see below), whose sum is σ = 51710206464. Its totient is φ = 8529509376.

The previous prime is 25007320711. The next prime is 25007320747. The reversal of 25007320730 is 3702370052.

It is a junction number, because it is equal to n+sod(n) for n = 25007320693 and 25007320702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 912002 + ... + 939021.

It is an arithmetic number, because the mean of its divisors is an integer number (1615943952).

Almost surely, 2^25007320730 is an apocalyptic number.

25007320730 is an abundant number, since it is smaller than the sum of its proper divisors (26702885734).

25007320730 is a wasteful number, since it uses less digits than its factorization.

25007320730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851230.

The product of its (nonzero) digits is 8820, while the sum is 29.

Adding to 25007320730 its reverse (3702370052), we get a palindrome (28709690782).

The spelling of 25007320730 in words is "twenty-five billion, seven million, three hundred twenty thousand, seven hundred thirty".